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7921
Laser annealing of semiconductor materials for future electron device application
Published 2011“…In addition, spatial control can be achieved by adjusting the beam size, which enables the realization of localized heating and melting. …”
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Thesis -
7922
Study on properties of fibre ring resonators
Published 2017“…A simple construction of fibre ring resonator with its beam splitting coupler and optical circulator is shown schematically. …”
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Final Year Project (FYP) -
7923
Interpretation of an anomalous peak in low-temperature photoluminescence measurements of bulk GaAs[sub 1−x]N[sub x] on GaAs
Published 2013“…Low-temperature 10 K photoluminescence measurements of GaAs1−xNx epitaxial layers grown on GaAs reveal an anomalous second peak in solid-source molecular beam epitaxy. Rapid thermal annealing RTA of a specific GaAsN sample reveals a lower energy peak which redshifts and a higher energy peak which blueshifts under increasing annealing temperature. …”
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Journal Article -
7924
High flux strontium atom source
Published 2024“…To enhance the atomic flux, we employ tailored magnetic fields that minimize radial beam expansion and incorporate a cascaded Zeeman-slowing configuration utilizing two optical frequencies. …”
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Journal Article -
7925
An energy-efficient multi-channel design for distributed wireless sensor networks
Published 2023“…Nodes exchange control packets on the control channel to choose a data channel and decide the beam direction of the flow. Simulation results show that EE-MMAC achieves significant energy gains (30% to 45% less than comparable IEEE 802.11 and MMAC) based on energy efficiency, packet delivery ratio, and throughput.…”
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Article -
7926
In-situ rapid construction of aliphatic amine combined polyamide seawater reverse osmosis membrane for efficient boron removal
Published 2023“…The permeability coefficient of boron decreased from 4.8 to 0.9 L m−2 h−1, and the boron rejection increased from 80.7 to 90.5% under the modification conditions with the optimal type and concentration of amines, while displaying a NaCl rejection of 99.8% and an acceptable water permeability of 0.55 L m−2 h−1 bar−1. Meanwhile, the alteration of membrane chemical compositions and structure properties was kept to a minimum. …”
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Journal Article -
7927
Engineering nano-nodular pattern on the substrate surface by tuning phase inversion to construct ultrapermselective ion-separation nanofiltration membrane
Published 2024“…The nano-nodular surface and thinner thickness exhibited a remarkable contribution to water permeability, which reached 38.3 L m−2h−1bar−1. The narrow pore size distribution made an outstanding Na2SO4 rejection of 99.1 % and Cl−/SO42− selectivity of 83 at 1000 mg/L of mixed salt solution. …”
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Journal Article -
7928
An experimental investigation of vibration testing of aircraft wing structure
Published 2010“…Prior to that, the initial stages of the analysis involved the investigation of an individual I-beam with different impact hammer to determine the compatibility of equipments, accuracy and consistency of results obtained. …”
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Final Year Project (FYP) -
7929
Analysis of changes in composites after different level of heat exposure
Published 2014“…One of the popular extended non-destructive testing used by the aviation industry to determine heat damage in carbon fiber is the 4100 ExoScan. 4100 ExoScan’s manufacturer, the Agilent’s Technologies had published a research paper named “Composite thermal damage – correlation of short beam shear data with FTIR spectroscopy” to show the effectiveness of 4100 ExoScan to characterize the heat damage in carbon fiber. …”
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Final Year Project (FYP) -
7930
Heat assisted magnetic recording (HAMR) head design and simulation
Published 2014“…An optic delivery system is wisely designed to direct the laser beam into the recording medium and to prevent the heat loss from the laser in the read/write head. …”
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Final Year Project (FYP) -
7931
Experimental study on effects of multi-column removal affecting behaviour of RC frames to mitigate progressive collapse
Published 2015“…In this experiment, 2 similar specimens of multi-panel beam-slab-column system were tested with the only difference being the number of columns removed in each test. …”
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Final Year Project (FYP) -
7932
Butterfly-Inspired 2D Periodic Tapered-Staggered Subwavelength Gratings Designed Based on Finite Difference Time Domain Method
Published 2015“…The butterfly-inspired 2D periodic tapered-staggered subwavelength gratings were developed mainly using finite difference time domain (FDTD) method, assisted by using focused ion beam (FIB) nanoscale machining or fabrication. The periodic subwavelength structures along the ridges of the designed gratings may change the electric field intensity distribution and weaken the surface reflection. …”
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Journal Article -
7933
Enhancing interlaminar fracture characteristics of woven CFRP prepreg composites through CNT dispersion
Published 2013“…The interlaminar fracture toughness of these CFRP lay-ups was evaluated experimentally and compared with the regular (without any CNTs) specimen. Double cantilever beam and end notch flexure tests were conducted for interlaminar fracture studies. …”
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Journal Article -
7934
On the study of keyhole-mode melting in selective laser melting process
Published 2020“…The heat source model imitates the multiple reflections of the laser beam by using the Fresnel absorption function. The model is able to simulate the fluid flow and heat transfer of keyhole-mode laser melting process, which is validated by single track experiments. …”
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Journal Article -
7935
The thinnest light disk: rewritable data storage and encryption on WS₂ monolayers
Published 2022“…The write-in is realized by precise control of photoluminescence emission by means of ozone functionalization and scanning focused laser beam. The visual decryption and reading-out of information are enabled by fluorescence contrast. …”
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Journal Article -
7936
Part geometry-driven crystallographic texture control in a 3D-printed austenitic steel – a strategy for near-monocrystalline microstructure generation
Published 2023“…We propose and employ a novel X-shaped geometry to strengthen the 〈001〉 || z crystallographic texture – distinctive of the electron beam powder-bed fusion technique, for a 3D-printed austenitic stainless steel of type 316 L. …”
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Journal Article -
7937
Three-dimensional imaging of microstructures by an improved compact digital holographic microscope (ICDHM) with dual wavelength
Published 2018“…A point source generated by a long working distance microscope objective is located into the cube beam-splitter to get a higher numerical aperture (NA) of the system. …”
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Conference Paper -
7938
Long-wavelength monolithic gaInNAs vertical-cavity optical amplifiers
Published 2009“…The VCSOA structure was monolithically grown by molecular beam epitaxy and operated in reflection mode in a fiber-coupled system. …”
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Journal Article -
7939
Low-temperature specific heat capacity of water-ammonia mixtures down to the eutectic
Published 2024“…In support of developing new equations of state, we conducted 1 bar specific heat capacity measurements (Cp) using a differential scanning calorimeter (DSC) at low temperatures (184-314 K) and low mass fractions of ammonia (5.2-26.9 wt %) to provide novel data in the parameter space most relevant for planetary studies. …”
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Journal Article -
7940
Ship detection using optical satellite imagery
Published 2016“…There are two filtering conditions involved in this Matlab program, which are length-beam ratio and roundness. By using these two constrains, the program can successfully detect sea-going ships among all those false alarms like small island, wakes and cloud. …”
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Final Year Project (FYP)